Gustav davbeio



(No Model.)

'DAVE-R'IO. 4 DRIVING GEARFOR .FLOUR SIFTERSQ:

No. &80,249;

PatentedM-ar. 27, 1888.

UNITED STATES 'PATENT OFFICE.

GUSTAV DAVERIO, OF ZURICH, SWITZERLAND.

'DRlVlNG-GER FOR FLOUR-SIFTERS. h

SPECIFICATION forming part of Letters Patent No. 380.249, dated March 2 '7, 1888. Application filed February '7, 1888. Serial No. &63,237. (N o model.) Pateuted in Belgium October 27,198?, No. 79,325.

.To all whom it may concrn:

Be it known that I, GUSTAV DAvERIo, a citizen of Switzer1and,resding at Zurich, Switzerland, have invented new and useful Improvements in the Driving-Gear of Flour-Sifters, (for which Letters Patent have been granted in Belgium, October 27, 1887, No. 79,325,) whereof the following is a specification.

My invention relates to flour-sifters having quiokly-rotating beaters and two slowly-rotating sifting-cylinders placed one within the other, and its object is to transmit motion from the beatershaft to the said cylinders by means of a single strap and worm-gear.

On the annexed sheet of drawings is represented a sifting-machine provided with the nechanism by means whereof I attain this object.

Figure 1 is a longitudinal sectonal View of the machine; Fig. 2, an end view, and Fig. 3.

a portion of the plan.

a. is the shaft carrying the beaters b.

c and d are the two cylnder s.-

The shalt a is driven by means of a pulley, 6,' fixed t-o one end of the same. Upon the other end of the shaft is keyed the small pulley f, and on the boss of the cylinder c the large pulley h, placed at some' distance from the forme:: The boss of the cylinder d carries the' warm-wheel k. Below the said pulleys f and an oblique position; and a strapfl', bent around the pulley f, is conducted on both sides of same downward and passed around the pulleys g and m, and from these upward around'the pulley proportion to the ratio between the diameters of the pulleys h andf. For Operating the cylinder d the axle of the guide-pulley g is fitted witnesses:

HENEY SPRINGMANN,

B. ROI.

h. By these means motion is 'conveyed from the beater-shaft a to the cylinder c, the speed of rotation being at the same time reduced in GUSTAV DAVERIO.

. 3 h two guide-pulleys, g and m, are arranged in with a worm, i, which gears with the worm- 

